Finding solos in music Christine Smit

What is a ‘solo’? a single note sounding at a time a single note sounding at a time

Why do this? solo finder + instrument identifier = instrument sample library

What characterizes a solo? non-solo solonon-solo

What characterizes a solo?

The Approach Estimate pitch Estimate pitch Filter out pitch (and partials) Filter out pitch (and partials) See how much residual energy is left See how much residual energy is left

Unfiltered vs. Filtered

Initial test run Setup: 20 1-minute samples hand labeled 20 1-minute samples hand labeled 28% solo, 72% non-solo 28% solo, 72% non-soloResults: 23% correct identification of solo frames 23% correct identification of solo frames 90% correct identification of non-solo frames 90% correct identification of non-solo frames

The culprit?

Next step… Markov!